Dabbae
When you talk about yourself in a group, but you don't actually say your name. You just act like you're the most important person there.
She said, 'I got this!' even though no one asked her to do anything.
He acted like the whole group was depending on him, even though he had no idea what they were talking about.
She said, 'I'm the best at this,' even though she had never done it before.